EP0781323B1 - Enzyme-containing washing and bleaching agent in powder form - Google Patents

Enzyme-containing washing and bleaching agent in powder form Download PDF

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Publication number
EP0781323B1
EP0781323B1 EP95932676A EP95932676A EP0781323B1 EP 0781323 B1 EP0781323 B1 EP 0781323B1 EP 95932676 A EP95932676 A EP 95932676A EP 95932676 A EP95932676 A EP 95932676A EP 0781323 B1 EP0781323 B1 EP 0781323B1
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EP
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Prior art keywords
weight
sodium
cevu
bleach activator
cellulase
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EP95932676A
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German (de)
French (fr)
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EP0781323A1 (en
Inventor
Heinz-Manfred Wilsberg
Günther VOGT
Georg Meine
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Henkel AG and Co KGaA
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Henkel AG and Co KGaA
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Classifications

    • CCHEMISTRY; METALLURGY
    • C11ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11DDETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D3/00Other compounding ingredients of detergent compositions covered in group C11D1/00
    • C11D3/16Organic compounds
    • C11D3/38Products with no well-defined composition, e.g. natural products
    • C11D3/386Preparations containing enzymes, e.g. protease or amylase
    • C11D3/38645Preparations containing enzymes, e.g. protease or amylase containing cellulase
    • CCHEMISTRY; METALLURGY
    • C11ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11DDETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D3/00Other compounding ingredients of detergent compositions covered in group C11D1/00
    • C11D3/39Organic or inorganic per-compounds
    • C11D3/3902Organic or inorganic per-compounds combined with specific additives
    • C11D3/3905Bleach activators or bleach catalysts
    • C11D3/3907Organic compounds

Definitions

  • Bleach and additives containing bleach are often used in household laundry Supplement to the usual detergents used to their cleaning effect reinforce. These additives are used especially when heavily soiled Laundry to be washed or to lighten white laundry again.
  • Bleaching systems which are a combination, are generally used as bleaching agents an inorganic peroxide or perhydrate with a bleach activator, the under Washing conditions form an organic peracid. These combinations are known for a long time.
  • the most commonly used active oxygenated Bleaching components are the alkali perborates, percarbonates, persulfates and persilicates.
  • activators such compounds are generally used which are hydrolyzed under or perhydrolysis conditions split off carboxylic acids or percarboxylic acids, where predominantly such compounds are used in the presence of the mentioned oxidizing agents peracetic acid.
  • European patent application EP 0 407 045 describes a stabilized one Sodium percarbonate composition described, which in addition to sodium percarbonate 2.5 to 35% by weight of at least one compound from the group consisting of urea, Urea derivatives, acetates, amino acids with no more than seven carbon atoms or their salts, triazine compounds and guanidine compounds as stabilizers.
  • Compositions are described which consist only of percarbonate or from a mixture of percarbonate and alkali metal carbonates, dicarbonates, sulfates and borates.
  • Enzyme-containing compositions are also known from the prior art can be used as detergent. So in the international patent application WO 93/21294 describes surfactant compositions which, in addition to surfactants and builders a modified polyester in combination with cellulase and soil release compounds contain. The finished agents contain further components Bleach.
  • the present invention relates to a powdered washing and Detergent to enhance the bleaching effect, when washing colored Containing textiles that do not lose their color even after several washes 20% by weight to 60% by weight of alkali percarbonate, 5% by weight to 20% by weight of bleach activator, Cellulase with an activity of 0.01 CEVU / g to 2.7 CEVU / g, 5% by weight up to 10% by weight of anionic surfactant, 0.1% by weight to 3% by weight of nonionic surfactant, 5 % By weight to 15% by weight builder, 1 to 6% by weight alkali citrate, up to 15% by weight water, 10% to 60% by weight of water-soluble salts selected from sodium chloride, anhydrous sodium carbonate, sodium nitrate, sodium sulfate and mixtures thereof, 0.01 wt% to 1 wt% complexing agent and 0.1 wt% to 0.5 wt% optical Brightener.
  • Such cellulases are, for example from the German published documents DE 31 17 250, DE 32 07 825, DE 32 07 847, DE 33 22 950 or the European patent applications EP 265 832, EP 269 077, EP 270 974, EP 273 125 and EP 339 550 are known. Suitable commercial products Examples are Celluzyme® from Novo Nordisk or KAC® from Kao.
  • the agent according to the invention contains anionic and nonionic surfactants. Further may also contain soaps. Suitable anionic surfactants are in particular those of the sulfate or sulfonate type, but other types such as soaps, long-chain N-acyl sarcosinates, salts of fatty acid cyanamides or salts of ether carboxylic acids, as from long-chain alkyl or alkylphenyl polyglycol ethers and chloroacetic acid accessible are used.
  • the anionic surfactants are preferred used in the form of sodium salts.
  • the surfactants of the sulfonate type are primarily the alkylbenzenesulfonates with C 9 to C 15 alkyl groups, sulfosuccinic acid mono- and diesters with 6 to 22 C atoms in the alcohol parts and the esters of ⁇ -sulfofatty acids, for example the ⁇ -sulfonated methyl or ethyl esters of hydrogenated coconut, palm kernel or tallow fatty acids.
  • Saturated fatty acid soaps such as the salts of lauric acid
  • the detergents according to the invention preferably contain the soaps in amounts of 0.1 to 4% by weight, in particular 0.1 to 3% by weight.
  • Suitable nonionic surfactants include alkyl polyglycosides with 10 to 22 carbon atoms in the alkyl part and the alkoxylates, especially the ethoxylates and / or Propoxylates of linear and branched chain alcohols with 10 to 22 carbon atoms, preferably 12 to 18 atoms.
  • the degree of alkoxylation of the alcohols lies here between 1 and 20, preferably 3 and 10. You can in a known manner Reaction of the corresponding alcohols with the corresponding alkylene oxides getting produced.
  • Derivatives of fatty alcohols are particularly suitable, although also their branched chain isomers, in particular so-called oxo alcohols, for the preparation usable alkoxylates can be used.
  • ethoxylates of primary alcohols with linear dodecyl, tetradecyl, Hexadecyl or octadecyl residues and mixtures thereof. They are also appropriate Ethoxylation and / or propoxylation products of alkylamines, vicinal diols and carboxamides, the alcohols mentioned with regard to the alkyl part correspond, and usable of alkylphenols having 5 to 12 carbon atoms in the alkyl radical.
  • the agent according to the invention contains builder as a further constituent.
  • the builders are a water-soluble or a water-insoluble compound or a mixture of two or more such compounds.
  • Commercial builder substances can be used. Suitable builder substances are, in particular, those from the classes of polycarboxylic acids, in particular polymeric acrylic acids, methacrylic acids, maleic acids and copolymers thereof, phyllosilicates, in particular bentonites, aluminum silicates, in particular zeolites, alkali metal silicates, in particular sodium silicate, and alkali metal carbonates, in particular sodium carbonate.
  • the aforementioned polycarboxylic acids are usually used in the form of their alkali metal salts, in particular their sodium or potassium salts.
  • the preferably incorporated zeolites are in particular those of the NaA or NaX type or mixtures thereof.
  • the alkali silicates those with molar ratios of SiO 2 to alkali oxide in the range from 1.5 to 3.0 are preferred.
  • the agent according to the invention also contains optical brighteners.
  • the agent according to the invention contains nonionic surfactant, it can also be sprayed as part of the aqueous slurry or sprayed onto the powder in a known manner after the other components have been spray-dried. It is preferred that the spray-dried powder have a water content such that the water content of the finished composition is 8% by weight to 15% by weight, in particular 8% by weight to 13% by weight.
  • This spray-dried product is preferably produced in such a way that an approximately 30% by weight to 65% by weight water-containing suspension of builder substances and surfactant is heated to temperatures of approximately 40 ° C. to 100 ° C.
  • the agent according to the invention preferably has a bulk density of not more than 850 g / l, in particular from 250 to 800 g / l and particularly preferably from 400 to 750 g / l. It is preferably used as an additive to detergent-containing liquors, especially in the temperature range from 30 ° C to 60 ° C, to enhance the bleaching effect (bleach booster). However, it can also be used as the sole active cleaning component in the wash liquor, in particular if textiles which are to be cleaned are contaminated only with relatively small amounts of non-bleachable soiling.

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  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Wood Science & Technology (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Detergent Compositions (AREA)
  • Medicines That Contain Protein Lipid Enzymes And Other Medicines (AREA)

Abstract

A washing and bleaching agent in powder form contains oxidant and cellulase. According to the invention, for 1 wt. % oxidant, said agent contains cellulase having an activity ranging from 0.005 CEVU to 10.5 CEVU, and 1 to 20 wt. % bleach activator. The agent can be used to wash coloured textiles without their loosing their colour, even after several washes.

Description

Die Erfindung betrifft pulverförmige Oxidationsmittel- und Cellulase-haltige Bleich- und Waschmittel insbesondere für den Temperaturbereich von 30° C bis 60° C, zur Verstärkung der Bleichwirkung, wobei beim Waschen von farbigen Textilien diese ihre Farbigkeit auch nach mehreren Wäschen nicht verlieren in der Haushaltswäsche.The invention relates to powdered oxidants and Bleach and detergent containing cellulase especially for the temperature range from 30 ° C to 60 ° C, to reinforce the Bleaching effect, whereby when washing colored textiles they also change their color do not lose after several washes in household laundry.

Bleichmittel und bleichmittelhaltige Zusätze werden bei der Haushaltswäsche häufig als Ergänzung zu den üblichen Waschmitteln verwendet, um deren Reinigungswirkung zu verstärken. Diese Zusätze werden insbesondere dann eingesetzt, wenn stark verschmutzte Wäsche gewaschen werden soll oder um weiße Wäsche wieder aufzuhellen.Bleach and additives containing bleach are often used in household laundry Supplement to the usual detergents used to their cleaning effect reinforce. These additives are used especially when heavily soiled Laundry to be washed or to lighten white laundry again.

Als Bleichmittel werden in der Regel Bleichsysteme eingesetzt, die eine Kombination eines anorganischen Peroxids oder Perhydrats mit einem Bleichaktivator, der unter Waschbedingungen eine organische Persäure bildet, enthalten. Diese Kombinationen sind seit langer Zeit bekannt. Die am häufigsten eingesetzten aktivsauerstoffhaltigen Bleichkomponenten sind die Alkaliperborate,- percarbonate,- persulfate und -persilikate. Als Aktivatoren werden in der Regel solche Verbindungen verwendet, die unter Hydrolyse- bzw. Perhydrolysebedingungen Carbonsäuren bzw. Percarbonsäuren abspalten, wobei in überwiegendem Maße solche Verbindungen eingesetzt werden, die in Gegenwart der erwähnten Oxidationsmittel Peressigsäure liefern.Bleaching systems, which are a combination, are generally used as bleaching agents an inorganic peroxide or perhydrate with a bleach activator, the under Washing conditions form an organic peracid. These combinations are known for a long time. The most commonly used active oxygenated Bleaching components are the alkali perborates, percarbonates, persulfates and persilicates. As activators such compounds are generally used which are hydrolyzed under or perhydrolysis conditions split off carboxylic acids or percarboxylic acids, where predominantly such compounds are used in the presence of the mentioned oxidizing agents peracetic acid.

In der deutschen Patentanmeldung DE 31 41 745 wird z.B. eine enzymhaltige Bleichmittelzusammensetzung beschrieben, die ein zum Bleichen von Geweben wirksames anorganisches Peroxid enthält, sowie 0,01 bis 5 Gew.-%, bezogen auf die Gesamtmasse der Enzyme, Hydrolase, Transferase, Oxyreductase, Lyase, Isomerase, Ligase, Protease, Lipase, Cellulase oder Amylase mit einer optimalen Wirkungstemperatur von 10 °C bis 80 °C bei einem optimalen pH-Wert von 4 bis 12, sowie mindestens 0,1 bis 20 Gew.-%, bezogen auf die Gesamtmasse eines wasserfreien Salzes aus der Reihe wasserfreies Natriumcitrat, wasserfreies Magnesiumsulfat, wasserfreies Calciumchlorid und wasserfreies Zinksulfat. Der Wassergehalt der Gesamtmasse der beschriebenen Zusammensetzung beträgt weniger als 2 Gew.-%.In German patent application DE 31 41 745 e.g. an enzyme-containing bleach composition described an inorganic effective for bleaching fabrics Peroxide contains, as well as 0.01 to 5 wt .-%, based on the total mass of Enzymes, hydrolase, transferase, oxyreductase, lyase, isomerase, ligase, protease, Lipase, cellulase or amylase with an optimal temperature of 10 ° C to 80 ° C at an optimal pH of 4 to 12, as well as at least 0.1 to 20% by weight, based on the total mass of an anhydrous salt from the series anhydrous Sodium citrate, anhydrous magnesium sulfate, anhydrous calcium chloride and anhydrous Zinc sulfate. The water content of the total mass of the composition described is less than 2% by weight.

In der europäischen Patentanmeldung EP 0 407 045 wird eine stabilisierte Natriumpercarbonatzusammensetzung beschrieben, die neben Natriumpercarbonat auch 2,5 bis 35 Gew.-% mindestens einer Verbindung aus der Gruppe bestehend aus Harnstoff, Harnstoffderivaten, Acetaten, Aminosäuren mit nicht mehr als sieben Kohlenstoffatomen oder deren Salzen, Triazinverbindungen und Guanidinverbindungen als Stabilisatoren enthält. Es werden Zusammensetzungen beschrieben, die nur aus Percarbonat bestehen oder aus einem Gemisch aus Percarbonat und Alkalimetallcarbonaten, -dicarbonaten, -sulfaten und -boraten.European patent application EP 0 407 045 describes a stabilized one Sodium percarbonate composition described, which in addition to sodium percarbonate 2.5 to 35% by weight of at least one compound from the group consisting of urea, Urea derivatives, acetates, amino acids with no more than seven carbon atoms or their salts, triazine compounds and guanidine compounds as stabilizers. Compositions are described which consist only of percarbonate or from a mixture of percarbonate and alkali metal carbonates, dicarbonates, sulfates and borates.

In der europäischen Patentanmeldung EP 0 508 034 wird eine Waschmittelzusammensetzung beschrieben, die neben Polyvinylpyrrolidon, Tensiden und Builder auch Bleichmittel, Bleichaktivator und Enzyme enthalten kann.In European patent application EP 0 508 034 a detergent composition described, which in addition to polyvinylpyrrolidone, surfactants and builders Can contain bleach, bleach activator and enzymes.

Aus dem Stand der Technik sind auch Enzym-haltige Zusammensetzungen bekannt, die als Waschmittel eingesetzt werden. So werden in der internationalen Patentanmeldung WO 93/21294 Tensidzusammensetzungen beschrieben, die neben Tensiden und Buildern einen modifizierten Polyester in Kombination mit Cellulase und Soil-release-Verbindungen enthalten. Als weitere Bestandteile enthalten die fertigen Mittel Bleichmittel.Enzyme-containing compositions are also known from the prior art can be used as detergent. So in the international patent application WO 93/21294 describes surfactant compositions which, in addition to surfactants and builders a modified polyester in combination with cellulase and soil release compounds contain. The finished agents contain further components Bleach.

In der europäischen Patentanmeldung EP-A-495 258 werden Tensidzusammensetzungen offenbart, die Tensid, ein Buildersystem, Cellulase und ein weichmachenden Ton enthalten, deren Aufgabe darin besteht, eine farbauffrischende Wirkung und Erhalt der weißen Farbe bei Textilien auf Baumwollbasis zu bewirken. European patent application EP-A-495 258 describes surfactant compositions discloses the surfactant, a builder system, cellulase and a softening clay included, the task of which is to refresh the color and maintain the white color in cotton-based textiles.

Ferner ist aus dem Informationsblatt der NOVO NORDISK, B157G-GB 3500 "Enzyme für die Tensidindustrie" bekannt, daß Cellulase eine farbauffrischende Wirkung aufweist.Furthermore, from the information sheet of NOVO NORDISK, B157G-GB 3500 "Enzyme for the surfactant industry "that cellulase has a color-refreshing effect.

Die voranstehend genannten Wasch- und Bleichmittel haben jedoch den Nachteil, daß auf Grund der enthaltenen Oxidationsmittel bei Buntwäsche auch die Farben auf den gewaschenen Textilien bereits nach wenigen Wäschen ihre Farb- und Leuchtkraft verlieren und in vielen Fällen auch gräulich erscheinen und somit "verwaschen" aussehen.However, the above-mentioned detergents and bleaches have the disadvantage that Because of the oxidizing agents contained in colored laundry, the colors on the washed textiles their color and luminosity after just a few washes lose and in many cases appear greyish and look "washed out".

Aufgabe der vorliegenden Erfindung war es, eine Bleich- und Waschmittelzusammensetzung zur Verfügung zu stellen, die die obigen Nachteile nicht aufweist und die auch zum Waschen von farbigen Textilien verwendet werden kann, ohne daß diese ihre Farbigkeit auch nach mehreren Wäschen verlieren.The object of the present invention was to provide a bleach and detergent composition to provide, which does not have the above disadvantages and which can also be used to wash colored textiles without them Loss of color even after several washes.

Gegenstand der vorliegenden Erfindung ist ein pulverförmiges Wasch- und Reinigungsmittel zur Verstärkung der Bleichwirkung, wobei beim Waschen von farbigen Textilien diese ihre Farbigkeit auch nach mehreren Wäschen nicht verlieren, enthaltend 20 Gew.-% bis 60 Gew.-% Alkalipercarbonat, 5 Gew.-% bis 20 Gew.-% Bleichmittelaktivator, Cellulase mit einer Aktivität von 0,01 CEVU/g bis 2,7 CEVU/g, 5 Gew.-% bis 10 Gew.-% anionisches Tensid, 0,1 Gew.-% bis 3 Gew.-% nichtionisches Tensid, 5 Gew.-% bis 15 Gew.-% Builder, 1 bis 6 Gew.-% Alkalicitrat, bis zu 15 Gew.-% Wasser, 10 Gew.-% bis 60 Gew.-% wasserlösliche Salze, ausgewählt aus Natriumchlorid, wasserfreiem Natriumcarbonat, Natriumnitrat, Natriumsulfat sowie deren Gemischen, 0,01 Gew.-% bis 1 Gew.-% Komplexbildner und 0,1 Gew.-% bis 0,5 Gew.-% optische Aufheller.The present invention relates to a powdered washing and Detergent to enhance the bleaching effect, when washing colored Containing textiles that do not lose their color even after several washes 20% by weight to 60% by weight of alkali percarbonate, 5% by weight to 20% by weight of bleach activator, Cellulase with an activity of 0.01 CEVU / g to 2.7 CEVU / g, 5% by weight up to 10% by weight of anionic surfactant, 0.1% by weight to 3% by weight of nonionic surfactant, 5 % By weight to 15% by weight builder, 1 to 6% by weight alkali citrate, up to 15% by weight water, 10% to 60% by weight of water-soluble salts selected from sodium chloride, anhydrous sodium carbonate, sodium nitrate, sodium sulfate and mixtures thereof, 0.01 wt% to 1 wt% complexing agent and 0.1 wt% to 0.5 wt% optical Brightener.

Überraschenderweise wurde festgestellt, daß das erfindungsgemäße Mittel eine hervorragende Wasch- und Bleichwirkung zeigt, wobei jedoch die Farbigkeit auch nach mehreren Wäschen im wesentlichen beibehalten wird.It has surprisingly been found that the agent according to the invention is a shows excellent washing and bleaching effects, but the color also after several washes is essentially maintained.

Als Oxidationsmittel enthält das erfindungsgemäße Mittel Natriumpercarbonat. The agent according to the invention contains sodium percarbonate as the oxidizing agent.

Als weiteren Bestandteil enthält das erfindungsgemäße Bleich- und Waschmittel einen Bleichaktivator. Als Bleichaktivatorkomponente ist jede pulverförmig konfektionierbare, unter Perhydrolysebedingungen organische Persäure liefernde Verbindung geeignet. Zu diesen gehören insbesondere N- oder O-Acylverbindungen, beispielsweise mehrfach acylierte Alkylendiamine, insbesondere Tetraacetylethylendiamin, N-acylierte Triazine, insbesondere 1,5-Diacetyl-2,4-dioxo-hexahydro-1,3,5-triazin, acylierte Glykolurile, insbesondere Tetraacetylglykoluril, N-acylierte Hydantoine, Hydrazide, Triazole, Urazole, Diketopiperazine, Sulfurylamide und Cyanurate, außerdem Carbonsäureanhydride, insbesondere Phthalsäureanhydrid, Carbonsäureester, insbesondere Natrium-isononanoylphenolsulfonat, und acylierte Zuckerderivate, insbesondere Pentaacetylglukose. Der Bleichaktivator kann in bekannter Weise mit Hüllsubstanzen überzogen oder, ggf. unter Einsatz von Granulierhilfsmitteln, granuliert worden sein und gewünschtenfalls weitere Zusatzstoffe, beispielsweise Farbstoff, enthalten. Vorzugsweise wird ein Bleichaktivator eingesetzt, der unter den Waschbedingungen Peressigsäure bildet. Unter diesen ist mit Hilfe von Carboxymethylcellulose granuliertes Tetraacetylethylendiamin (TAED) mit mittleren Korngrößen von 0,01 mm bis 0,8 mm, wie es nach dem in der europäischen Patentschrift EP 037 026 beschriebenen Verfahren hergestellt werden kann, besonders bevorzugt. TAED ist vorzugsweise in Mengen von 94 Gew.-% bis 99 Gew.-% in der Bleichaktivatorkomponente enthalten. Bleichaktivator ist erfindungsgemäß einer Menge 5 Gew.-% bis 20 Gew.-%, insbesondere von 5 Gew.-% bis 15 Gew.-% im erfindungs-gemäßen Mittel enthalten sein.The bleaching and washing agent according to the invention contains a further constituent Bleach activator. As a bleach activator component, any powder-formable, Compound providing organic peracid under perhydrolysis conditions. To these include in particular N- or O-acyl compounds, for example several times acylated alkylenediamines, especially tetraacetylethylenediamine, N-acylated triazines, in particular 1,5-diacetyl-2,4-dioxo-hexahydro-1,3,5-triazine, acylated glycolurils, in particular tetraacetylglycoluril, N-acylated hydantoins, hydrazides, triazoles, urazoles, Diketopiperazines, sulfurylamides and cyanurates, also carboxylic anhydrides, especially phthalic anhydride, carboxylic acid esters, especially sodium isononanoylphenolsulfonate, and acylated sugar derivatives, especially pentaacetyl glucose. The Bleach activator can be coated with coating substances in a known manner or, if necessary, under Use of granulation aids, have been granulated and, if desired, more Additives, such as dye, contain. A bleach activator is preferred used, which forms peracetic acid under the washing conditions. Among these is with With the help of carboxymethylcellulose granulated tetraacetylethylenediamine (TAED) average grain sizes from 0.01 mm to 0.8 mm, as described in the European patent specification The process described in EP 037 026 can be produced, particularly prefers. TAED is preferably present in amounts from 94% to 99% by weight Bleach activator component included. According to the invention, bleach activator is a quantity of 5 % By weight to 20% by weight, in particular from 5% by weight to 15% by weight, in accordance with the invention Means be included.

Erfindungsgemäß enthält das Wasch- und Bleichmittel Cellulase in einer Aktivität von 0,01 CEVU bis 2,7 CEVU (Cellulose-Viscosity-Units, basierend auf der Viskositätszunahme von CMC-Lösungen bei der enzymatischen Hydrolyse der CMC wie in der Publikation AF-253/1 von Novo beschrieben). Die erfindungsgemäß verwendete Cellulase gehört zu den aus Bakterien oder Pilzen gewinnbaren Enzymen, welche ein pH-Optimum vorzugsweise im fast neutralen bis schwach alkalischen pH-Bereich von 6 bis 9,5 aufweisen. Derartige Cellulasen sind beispielsweise aus den deutschen Offenlegungsschriften DE 31 17 250, DE 32 07 825, DE 32 07 847, DE 33 22 950 oder den europäischen Patentanmeldungen EP 265 832, EP 269 077, EP 270 974, EP 273 125 sowie EP 339 550 bekannt. Geeignete Handelsprodukte sind beispielsweise Celluzyme® der Novo Nordisk oder KAC® von Kao.According to the invention, the detergent and bleach contains Cellulase with an activity of 0.01 CEVU to 2.7 CEVU (cellulose viscosity units, based on the increase in viscosity of CMC solutions during enzymatic hydrolysis the CMC as described in Novo publication AF-253/1). The Cellulase used according to the invention belongs to those from bacteria or fungi recoverable enzymes, which preferably have a pH optimum in the almost neutral to have a weakly alkaline pH range from 6 to 9.5. Such cellulases are, for example from the German published documents DE 31 17 250, DE 32 07 825, DE 32 07 847, DE 33 22 950 or the European patent applications EP 265 832, EP 269 077, EP 270 974, EP 273 125 and EP 339 550 are known. Suitable commercial products Examples are Celluzyme® from Novo Nordisk or KAC® from Kao.

Das erfindungsgemäße Mittel enthält anionische und nichtionische Tenside. Ferner können auch Seifen enthalten sein. Geeignete anionische Tenside sind insbesondere solche vom Sulfat- oder Sulfonattyp, doch können auch andere Typen wie Seifen, langkettige N-Acylsarcosinate, Salze von Fettsäurecyanamiden oder Salze von Ethercarbonsäuren, wie sie aus langkettigen Alkyl- oder Alkylphenyl-Polyglykolethern und Chloressigsäure zugänglich sind, verwendet werden. Die anionischen Tenside werden vorzugsweise in Form der Natriumsalze verwendet.The agent according to the invention contains anionic and nonionic surfactants. Further may also contain soaps. Suitable anionic surfactants are in particular those of the sulfate or sulfonate type, but other types such as soaps, long-chain N-acyl sarcosinates, salts of fatty acid cyanamides or salts of ether carboxylic acids, as from long-chain alkyl or alkylphenyl polyglycol ethers and chloroacetic acid accessible are used. The anionic surfactants are preferred used in the form of sodium salts.

Besonders geeignete Tenside vom Sulfattyp sind die Schwefelsäuremonoester von langkettigen primären Alkoholen natürlichen und synthetischen Ursprungs mit 10 bis 20 C-Atomen, d.h. von Fettalkoholen wie z.B. Kokosfettalkoholen, Talgfettalkoholen, Oleylalkohol, oder den C10- bis C20-Oxoalkoholen und solche von sekundären Alkoholen dieser Kettenlängen. Daneben kommen die Schwefelsäuremonoester der mit 1 bis 10 Mol Ethylenoxid ethoxylierten aliphatischen primären Alkohole, sekundären Alkohole oder Alkylphenole in Betracht. Ferner eignen sich sulfatierte Fettsäurealkanolamide und sulfatierte Fettsäuremonoglyceride.Particularly suitable surfactants of the sulfate type are the sulfuric acid monoesters of long-chain primary alcohols of natural and synthetic origin with 10 to 20 carbon atoms, ie of fatty alcohols such as, for example, coconut oil alcohols, tallow fatty alcohols, oleyl alcohol, or the C 10 to C 20 oxo alcohols and those of secondary alcohols of these chain lengths. In addition, the sulfuric acid monoesters of the aliphatic primary alcohols, secondary alcohols or alkylphenols ethoxylated with 1 to 10 mol of ethylene oxide come into consideration. Sulfated fatty acid alkanolamides and sulfated fatty acid monoglycerides are also suitable.

Bei den Tensiden vom Sulfonattyp handelt es sich in erster Linie um die Alkylbenzolsulfonate mit C9- bis C15-Alkylgruppen, um Sulfobernsteinsäuremono- und - diester mit 6 bis 22 C-Atomen in den Alkoholteilen und um die Ester von α-Sulfofettsäuren, beispielsweise die α-sulfonierten Methyl- oder Ethylester der hydrierten Kokos-, Palmkern- oder Talgfettsäuren. Weitere brauchbare Tenside vom Sulfonattyp sind die Alkansulfonate, die von C12- bis C18-Alkanen durch Sulfochlorierung oder Sulfoxidation und anschließende Hydrolyse bzw. Neutralisation oder durch Bisulfitaddition an Olefine erhältlich sind, sowie die Olefinsulfonate, d.h. Gemische aus Alken- und Hydroxyalkansulfonaten sowie Disulfonaten, wie man sie z.B. aus langkettigen Monoolefinen mit end-oder innenständiger Doppelbindung durch Sulfonieren mit gasförmigem Schwefeltrioxid und anschließender alkalischer oder saurer Hydrolyse der Sulfonierungsprodukte erhält. The surfactants of the sulfonate type are primarily the alkylbenzenesulfonates with C 9 to C 15 alkyl groups, sulfosuccinic acid mono- and diesters with 6 to 22 C atoms in the alcohol parts and the esters of α-sulfofatty acids, for example the α-sulfonated methyl or ethyl esters of hydrogenated coconut, palm kernel or tallow fatty acids. Other useful surfactants of the sulfonate type are the alkanesulfonates which are obtainable from C 12 to C 18 alkanes by sulfochlorination or sulfoxidation and subsequent hydrolysis or neutralization or by bisulfite addition to olefins, and also the olefin sulfonates, ie mixtures of alkene and hydroxyalkanesulfonates and disulfonates as obtained, for example, from long-chain monoolefins with a terminal or internal double bond by sulfonation with gaseous sulfur trioxide and subsequent alkaline or acidic hydrolysis of the sulfonation products.

Besonders bevorzugt werden als anionische Tenside die Alkylbenzolsulfonate mit linearen C9- bis C15-Alkylgruppen, die Fettalkoholsulfate mit 12 bis 18 C-Atomen und Gemische dieser Tenside verwendet. Anionisches Tensid ist in dem erfindungsgemäßen Mittel in Mengen von 5 Gew.-% bis 10 Gew.-% enthalten.Particularly preferred anionic surfactants are the alkylbenzenesulfonates with linear C 9 to C 15 alkyl groups, the fatty alcohol sulfates with 12 to 18 C atoms and mixtures of these surfactants. Anionic surfactant is contained in the agent according to the invention in amounts of 5% by weight to 10% by weight.

Als Seifen sind insbesondere gesättigte Fettsäureseifen, wie die Salze der Laurinsäure,
Myristinsäure, Palmitinsäure oder Stearinsäure, sowie aus natürlichen Fettsäuren, z.B. Kokos-, Palmkern-, oder Talgfettsäuren, abgeleitete Seifengemische, geeignet. Insbesondere sind solche Seifengemische bevorzugt, die zu 50 bis 100 Gew.-% aus gesättigten C12-C18-Fettsäureseifen und zu 0 bis 50 Gew.-% aus Ölsäureseife zusammengesetzt sind. Bevorzugt enthalten die erfindungsgemäßen Waschmittel die Seifen in Mengen von 0,1 bis 4 Gew.-%, insbesondere 0,1 bis 3 Gew.-%.
Saturated fatty acid soaps, such as the salts of lauric acid, are particularly suitable as soaps.
Myristic acid, palmitic acid or stearic acid, and soap mixtures derived from natural fatty acids, for example coconut, palm kernel or tallow fatty acids, are suitable. Soap mixtures are particularly preferred which are composed of 50 to 100% by weight of saturated C 12 -C 18 fatty acid soaps and 0 to 50% by weight of oleic acid soap. The detergents according to the invention preferably contain the soaps in amounts of 0.1 to 4% by weight, in particular 0.1 to 3% by weight.

Zu den geeigneten nichtionischen Tensiden gehören Alkylpolyglykoside mit 10 bis 22 C-Atomen im Alkylteil und die Alkoxylate, insbesondere die Ethoxylate und/oder Propoxylate von linearen und verzweigtkettigen Alkoholen mit 10 bis 22 C-Atomen, vorzugsweise 12 bis 18 -Atomen. Der Alkoxylierungsgrad der Alkohole liegt dabei zwischen 1 und 20, vorzugsweise 3 und 10. Sie können in bekannter Weise durch Umsetzung der entsprechenden Alkohole mit den entsprechenden Alkylenoxiden hergestellt werden. Geeignet sind insbesondere die Derivate der Fettalkohole, obwohl auch deren verzweigtkettige Isomere, insbesondere sogenannte Oxoalkohole, zur Herstellung verwendbarer Alkoxylate eingesetzt werden können. Brauchbar sind demgemäß insbesondere die Ethoxylate primärer Alkohole mit linearen Dodecyl-, Tetradecyl-, Hexadecyl- oder Octadecylresten sowie deren Gemische. Außerdem sind entsprechende Ethoxylierungs- und/oder Propoxylierungsprodukte von Alkylaminen, vicinalen Diolen und Carbonsäureamiden, die hinsichtlich des Alkylteils den genannten Alkoholen entsprechen, sowie von Alkylphenolen mit 5 bis 12 C-Atomen im Alkylrest verwendbar.Suitable nonionic surfactants include alkyl polyglycosides with 10 to 22 carbon atoms in the alkyl part and the alkoxylates, especially the ethoxylates and / or Propoxylates of linear and branched chain alcohols with 10 to 22 carbon atoms, preferably 12 to 18 atoms. The degree of alkoxylation of the alcohols lies here between 1 and 20, preferably 3 and 10. You can in a known manner Reaction of the corresponding alcohols with the corresponding alkylene oxides getting produced. Derivatives of fatty alcohols are particularly suitable, although also their branched chain isomers, in particular so-called oxo alcohols, for the preparation usable alkoxylates can be used. Accordingly, are particularly useful the ethoxylates of primary alcohols with linear dodecyl, tetradecyl, Hexadecyl or octadecyl residues and mixtures thereof. They are also appropriate Ethoxylation and / or propoxylation products of alkylamines, vicinal diols and carboxamides, the alcohols mentioned with regard to the alkyl part correspond, and usable of alkylphenols having 5 to 12 carbon atoms in the alkyl radical.

Das erfindungsgemäße Mittel enthält als weiteren Bestandteil Builder. Bei den Buildern handelt es sich um eine wasserlösliche oder eine wasserunlösliche Verbindung oder um ein Gemisch aus zwei oder mehreren derartiger Verbindungen. Es können handelsübliche Buildersubstanzen verwendet werden. Geeignete Buildersubstanzen sind insbesondere solche aus den Klassen der Polycarbonsäuren, insbesondere polymere Acrylsäuren, Methacrylsäuren, Maleinsäuren und Copolymere aus diesen, Schichtsilikate, insbesondere Bentonite, Alumosilikate, insbesondere Zeolithe, Alkalisilikate, insbesondere Natriumsilikat, und Alkalicarbonate, insbesondere Natriumcarbonat. Die vorgenannten Polycarbonsäuren werden üblicherweise in Form ihrer Alkalisalze, insbesondere ihrer Natrium- oder Kaliumsalze eingesetzt. Die vorzugsweise eingearbeiteten Zeolithe sind insbesondere solche des NaA- oder NaX-Typs oder deren Gemische. Unter den Alkalisilikaten sind solche mit Molverhältnissen von SiO2 zu Alkalioxid im Bereich von 1,5 bis 3,0 bevorzugt.The agent according to the invention contains builder as a further constituent. The builders are a water-soluble or a water-insoluble compound or a mixture of two or more such compounds. Commercial builder substances can be used. Suitable builder substances are, in particular, those from the classes of polycarboxylic acids, in particular polymeric acrylic acids, methacrylic acids, maleic acids and copolymers thereof, phyllosilicates, in particular bentonites, aluminum silicates, in particular zeolites, alkali metal silicates, in particular sodium silicate, and alkali metal carbonates, in particular sodium carbonate. The aforementioned polycarboxylic acids are usually used in the form of their alkali metal salts, in particular their sodium or potassium salts. The preferably incorporated zeolites are in particular those of the NaA or NaX type or mixtures thereof. Among the alkali silicates, those with molar ratios of SiO 2 to alkali oxide in the range from 1.5 to 3.0 are preferred.

Ferner enthält das erfindungsgemäße Mittel Alkalicitrat, wobei Natriumcitrat-2-Hydrat besonders bevorzugt ist.Furthermore, the agent according to the invention contains alkali citrate, sodium citrate 2-hydrate is particularly preferred.

Zusätzlich zu den oben genannten Komponenten enthält das erfindungsgemäße Wasch- und Bleichmittel als weitere pulverförmige Komponente wasserlösliche Salze die im Bereich von 1 °C bis 45 °C kein Kristallwasser abgeben und deren Schmelzpunkt über 45 °C liegt, ausgewählt aus Natriumchlorid, wasserfreies Natriumcarbonat, Natriumnitrat Natriumsulfat sowie deren Gemische. Derartige Salze sind in den erfindungsgemäßen Mitteln in einer Menge von 10 Gew.-% bis 60 Gew.-% enthalten.In addition to the above-mentioned components, the washing and Bleach as a further powdery component of water-soluble salts do not give off crystal water in the range from 1 ° C to 45 ° C and their melting point above 45 ° C, selected from sodium chloride, anhydrous sodium carbonate, Sodium nitrate, sodium sulfate and mixtures thereof. Such salts are in the Contain agents according to the invention in an amount of 10 wt .-% to 60 wt .-%.

Das erfindungsgemäße Mittel enthält zusätzlich zu den bisher genannten Bestandteilen Komplexbildner für Schwermetalle, die sowohl die Lagerstabilität, insbesondere der Percarbonat-Komponente, wie auch die Bleichwirkung des erfindungsgemäßen Bleichmittels unter Anwendungsbedingungen erhöhen. Zu den geeigneten Komplexierungsmitteln gehören Aminopolycarbonsäuren, insbesondere Nitrilotriessigsäure, Ethylendiamintetraessigsäure, Polyphosphonsäuren, insbesondere Aminotri-(methylenphosphonsäure), Ethylendiamintetra(methylenphosphonsäure) und 1-Hydroxyethan-1,1-diphosphonsäure sowie deren Alkalisalze, insbesondere deren Natriumsalze. Sie können in beliebiger Weise zugesetzt werden und werden vorzugsweise in das sprühgetrocknete Pulver aus Builder und Tensid eingearbeitet, in dem sie insbesondere in Mengen von 0,1 Gew.-% bis 1 Gew.-% vorhanden sein können. The agent according to the invention contains in addition to the previously mentioned components Complexing agent for heavy metals, which both the storage stability, especially the percarbonate component, as well as the bleaching effect of the bleaching agent according to the invention increase under application conditions. To the appropriate complexing agents include aminopolycarboxylic acids, especially nitrilotriacetic acid, ethylenediaminetetraacetic acid, Polyphosphonic acids, especially aminotri- (methylenephosphonic acid), Ethylenediaminetetra (methylenephosphonic acid) and 1-hydroxyethane-1,1-diphosphonic acid as well as their alkali salts, in particular their sodium salts. You can in can be added in any way and are preferably spray-dried into the Powder from builder and surfactant incorporated, in particular in amounts of 0.1 % By weight to 1% by weight can be present.

Das erfindungsgemäße Mittel enthält außerdem optische Aufheller.The agent according to the invention also contains optical brighteners.

Das erfindungsgemäße Mittel kann darüber hinaus weitere in Bleich- und Waschmitteln übliche Zusatzstoffe, wie weitere Enzyme, Farbstoffe und/oder Duftstoffe, enthalten. Diese Bestandteile sind vorzugsweise in Mengen nicht über 1 Gew.-%, insbesondere von 0,05 bis 0,5 Gew.-%, bezogen auf das gesamte Mittel, vorhanden. Sie können Teil einer oder mehrerer Pulverkomponenten sein oder mehr oder weniger homogen auf alle pulverförmigen Bestandteile verteilt sein.The agent according to the invention can also be used in bleaching and washing agents Usual additives, such as further enzymes, dyes and / or fragrances, contain. These components are preferably in amounts not exceeding 1% by weight, in particular of 0.05 to 0.5% by weight, based on the total agent, is present. You can be part of one or more powder components or more or less homogeneous to all powdered components to be distributed.

Die einzelnen Komponenten des erfindungsgemäßen Mittels können in an sich bekannter Weise vermischt und konfektioniert werden. Die Herstellung der erfindungsgemäßen Mittel erfordert keinen größeren technischen Aufwand. Meist sind einfache Mischapparaturen, wie Schaufel- oder Trommelmischer geeignet, in denen die pulverförmigen Komponenten gemischt werden können. Auch die Verwendung automatisch arbeitender Bandwaagen in Kombination mit Freifallmischern ist möglich und wird für eine kontinuierliche Produktion der erfindungsgemäßen Mittel bevorzugt. Gegebenenfalls kann die Mischung unter gleichzeitigem Aufdüsen von Farb- und/oder Duftstoffen bzw. flüssigen Enzymzubereitungen erfolgen. Es ist auch möglich, das Mittel durch Sprühtrocknen einer wäßrigen Suspension oder Aufschlämmung der Komponenten herzustellen. Enthält das erfindungsgemäße Mittel nichtionisches Tensid kann dieses als Teil der wäßrigen Aufschlämmung mitversprüht oder nach dem Sprühtrocknen der übrigen Bestandteile in bekannter Weise auf das Pulver aufgedüst werden. Es ist bevorzugt, daß das sprühgetrocknete Pulver einen solchen Wassergehalt aufweist, daß der Wassergehalt des fertigen Mittels 8 Gew.-% bis 15 Gew.-% beträgt, insbesondere 8 Gew.-% bis 13 Gew.-%. Vorzugsweise wird dieses sprühgetrocknete Produkt so hergestellt, daß eine etwa 30 Gew.-% bis 65 Gew.-% Wasser enthaltende Suspension aus Buildersubstanzen und Tensid auf Temperaturen von etwa 40 °C bis 100 °C erwärmt und mittels Düsen unter einem
Zerstäubungsdruck von etwa 20 bis 120 bar, insbesondere von 30 bis 60 bar, in einen Fallraum gesprüht wird, in den im Gleichstrom oder vorzugsweise im Gegenstrom Trocknungsgase eingeleitet werden, die Eingangstemperaturen von etwa 150 °C bis etwa 350 °C, insbesondere von 200 °C bis 250 °C aufweisen. Das erfindungsgemäße Mittel weist vorzugsweise ein Schüttgewicht von nicht über 850 g/l, insbesondere von 250 bis 800 g/l und besonders bevorzugt von 400 bis 750 g/l auf. Es wird vorzugsweise als Zusatz zu waschmittelhaltigen Flotten, insbesondere im Temperaturbereich von 30 °C bis 60 °C, zur Verstärkung der Bleichwirkung (Bleichbooster) eingesetzt. Es kann allerdings auch als alleinige reinigungsaktive Komponente in der Waschflotte verwendet werden, insbesondere dann, wenn nur mit relativ geringen Mengen an nicht-bleichbaren Anschmutzungen verunreinigte Textilien gereinigt werden sollen.
The individual components of the agent according to the invention can be mixed and packaged in a manner known per se. The preparation of the agents according to the invention does not require any major technical effort. Simple mixing devices, such as paddle or drum mixers, in which the powdery components can be mixed, are usually suitable. The use of automatic belt weighers in combination with free-fall mixers is also possible and is preferred for continuous production of the agents according to the invention. If appropriate, the mixture can be carried out with simultaneous spraying of colorants and / or fragrances or liquid enzyme preparations. It is also possible to prepare the agent by spray drying an aqueous suspension or slurry of the components. If the agent according to the invention contains nonionic surfactant, it can also be sprayed as part of the aqueous slurry or sprayed onto the powder in a known manner after the other components have been spray-dried. It is preferred that the spray-dried powder have a water content such that the water content of the finished composition is 8% by weight to 15% by weight, in particular 8% by weight to 13% by weight. This spray-dried product is preferably produced in such a way that an approximately 30% by weight to 65% by weight water-containing suspension of builder substances and surfactant is heated to temperatures of approximately 40 ° C. to 100 ° C. and by means of nozzles under a
Atomization pressure from about 20 to 120 bar, in particular from 30 to 60 bar, is sprayed into a drop chamber into which drying gases are introduced in cocurrent or preferably in countercurrent, the inlet temperatures from about 150 ° C. to about 350 ° C., in particular from 200 ° C to 250 ° C. The agent according to the invention preferably has a bulk density of not more than 850 g / l, in particular from 250 to 800 g / l and particularly preferably from 400 to 750 g / l. It is preferably used as an additive to detergent-containing liquors, especially in the temperature range from 30 ° C to 60 ° C, to enhance the bleaching effect (bleach booster). However, it can also be used as the sole active cleaning component in the wash liquor, in particular if textiles which are to be cleaned are contaminated only with relatively small amounts of non-bleachable soiling.

Claims (2)

  1. A powder-form detergent for boosting bleaching performance, coloured fabrics retaining their colour even after several washes, containing 20% by weight to 60% by weight of alkali metal percarbonate, 5% by weight to 20% by weight of bleach activator, cellulase with an activity of 0.01 CEVU/g to 2.7 CEVU/g, 5% by weight to 10% by weight of anionic surfactant, 0.1% by weight to 3% by weight of nonionic surfactant, 5% by weight to 15% by weight of builder, 1 to 6% by weight of alkali metal citrate, up to 15% by weight of water, 10% by weight to 60% by weight of watersoluble salts selected from sodium chloride, anhydrous sodium carbonate, sodium nitrate, sodium sulfate and mixtures thereof, 0.01% by weight to 1% by weight of complexing agent and 0.1% by weight to 0.5% by weight of optical brightener.
  2. A powder-form detergent as claimed in claim 1, characterized in that the bleach activator is a compound which forms peracetic acid under washing conditions, more particularly N,N,N',N'-tetraacetyl ethylenediamine, 1,5-diacetyl-2,4-dioxohexahydro-1,3,5-triazine, tetraacetyl glycol uril and pentaacetyl glucose.
EP95932676A 1994-09-16 1995-09-07 Enzyme-containing washing and bleaching agent in powder form Revoked EP0781323B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE4433027A DE4433027A1 (en) 1994-09-16 1994-09-16 Powdery, enzyme-containing bleach and detergent
DE4433027 1994-09-16
PCT/EP1995/003506 WO1996008554A1 (en) 1994-09-16 1995-09-07 Enzyme-containing washing and bleaching agent in powder form

Publications (2)

Publication Number Publication Date
EP0781323A1 EP0781323A1 (en) 1997-07-02
EP0781323B1 true EP0781323B1 (en) 2001-05-23

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EP95932676A Revoked EP0781323B1 (en) 1994-09-16 1995-09-07 Enzyme-containing washing and bleaching agent in powder form

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EP (1) EP0781323B1 (en)
JP (1) JPH10506135A (en)
AT (1) ATE201440T1 (en)
DE (2) DE4433027A1 (en)
ES (1) ES2158129T3 (en)
WO (1) WO1996008554A1 (en)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1999002633A1 (en) * 1997-07-11 1999-01-21 The Procter & Gamble Company Detergent compositions comprising a specific cellulase and a hydrophobic bleach activator

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB8902009D0 (en) * 1989-01-30 1989-03-22 Unilever Plc Particulate detergent compositions and their use
DE4031910A1 (en) * 1990-10-08 1992-04-09 Henkel Kgaa PERCARBONATE DETERGENT
EP0495554A1 (en) * 1991-01-16 1992-07-22 The Procter & Gamble Company Detergent compositions with high activity cellulase and quaternary ammonium compounds
EP0495258A1 (en) * 1991-01-16 1992-07-22 The Procter & Gamble Company Detergent compositions with high activity cellulase and softening clays
CA2117997A1 (en) * 1992-04-13 1993-10-28 Robin G. Hall Use of modified polyesters for the washing of cotton-containing fabrics
EP0659876A3 (en) * 1993-12-24 1996-12-04 Procter & Gamble Detergent additive composition.
DE4344490A1 (en) * 1993-12-24 1995-06-29 Henkel Kgaa Powdered detergent and cleaning agent

Also Published As

Publication number Publication date
EP0781323A1 (en) 1997-07-02
WO1996008554A1 (en) 1996-03-21
DE59509292D1 (en) 2001-06-28
ES2158129T3 (en) 2001-09-01
DE4433027A1 (en) 1996-03-21
JPH10506135A (en) 1998-06-16
ATE201440T1 (en) 2001-06-15

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